Information processing apparatus and non-transitory computer readable medium

ABSTRACT

An information processing apparatus includes a display controller that controls display of a display image, which is formed of a reduced image of a document by adding an accompanying image. The display controller controls display of the display image in a manner that when a display magnification of the display image is changed, the accompanying image is resized in a first direction in accordance with a magnification identical to the display magnification and resized in a second direction that differs from the first direction in accordance with a magnification that differs from the display magnification.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application is based on and claims priority under 35 USC 119 fromJapanese Patent Application No. 2017-204467 filed Oct. 23, 2017.

BACKGROUND (i) Technical Field

The present invention relates to an information processing apparatus anda non-transitory computer readable medium.

(ii) Related Art

There are various document management software applications known in therelated art, which are capable of displaying a reduced image of adocument, that is, a thumbnail, so that contents of the document arerecognizable by such a reduced image. Some of such document managementsoftware applications have a function of displaying an image thatrepresents the thickness of the document and adding the image to thethumbnail so that the relative volume of the number of pages included inthe document is recognized.

A fair number of document management software applications provide adisplay magnification function that enables resizing of the thumbnaildisplay size. When the thumbnail is reduced in size by using thisfunction, the thickness of the document is also reduced because theentire thumbnail is reduced in size.

SUMMARY

According to an aspect of the invention, there is provided aninformation processing apparatus including a display controller thatcontrols display of a display image, which is formed of a reduced imageof a document by adding an accompanying image. The display controllercontrols display of the display image in a manner that when a displaymagnification of the display image is changed, the accompanying image isresized in a first direction in accordance with a magnificationidentical to the display magnification and resized in a second directionthat differs from the first direction in accordance with a magnificationthat differs from the display magnification.

BRIEF DESCRIPTION OF THE DRAWINGS

An exemplary embodiment of the present invention will be described indetail based on the following figures, wherein:

FIG. 1 is a block diagram depicting an information processing apparatusaccording to an exemplary embodiment of the invention;

FIG. 2 illustrates a hardware configuration of a computer thatconstitutes the information processing apparatus according to thisexemplary embodiment;

FIG. 3 illustrates an example presentation of multiple documents, whichare presented by the information processing apparatus according to thisexemplary embodiment;

FIG. 4 illustrates document images presented by the informationprocessing apparatus according to this exemplary embodiment when theinformation processing apparatus changes display magnification of thedocument images;

FIG. 5 illustrates binder images presented by the information processingapparatus according to this exemplary embodiment when the informationprocessing apparatus changes display magnification of the binder images;

FIG. 6A illustrates a portion of a display screen in which documents andbinders are presented by the information processing apparatus accordingto this exemplary embodiment;

FIG. 6B illustrates a presentation of the documents and the binderspresented in FIG. 6A, and the documents and the binders are reducedwithout being subjected to a display control according to this exemplaryembodiment; and

FIG. 6C illustrates a presentation of the documents and the binderspresented in FIG. 6A, and the documents and the binders are reduced andsubjected to the display control according to this exemplary embodiment.

DETAILED DESCRIPTION

Hereinafter, an exemplary embodiment of the invention will be describedwith reference to the drawings.

FIG. 1 is a block diagram depicting an information processing apparatus10 according to an exemplary embodiment of the invention. FIG. 2illustrates a hardware configuration of a computer that constitutes theinformation processing apparatus 10 according to this exemplaryembodiment.

The information processing apparatus 10 according to this exemplaryembodiment may be realized by using a computer having general-purposehardware, such as a personal computer (PC). As depicted in FIG. 2, theinformation processing apparatus 10 is configured such that a centralprocessing unit (CPU) 21, a read-only memory (ROM) 22, a random-accessmemory (RAM) 23, a hard disk drive (HDD) 24, an input/output controller28, and a network interface (IF) 29 are connected to an internal bus 30.A mouse 25 and a keyboard 26, equipped as an input unit, and a display27, equipped as a display unit, are each connected to the input/outputcontroller 28. The network IF 29 is equipped as a communication unit. Inan information processing apparatus using a liquid crystal display, suchas a tablet terminal, as a user interface, the liquid crystal displayserves as an input unit and a display unit.

The information processing apparatus 10 according to this exemplaryembodiment includes a user interface (UI) 11, a display controller 12,and a document storage 13 as depicted in FIG. 1. In FIG. 1, elementsthat are not used for description of this exemplary embodiment areomitted.

The user interface 11 is a user interface unit that receives informationthat is input by using the mouse 25 or the keyboard 26 and outputsinformation to the display 27 by using various screen images. Thedisplay controller 12 realizes a function of document managementsoftware and performs display control to cause the user interface 11 todisplay thumbnails of documents stored in the document storage 13 anddocuments received via a network.

The document storage 13 stores document files to be displayed anddocument information such as attributes of the document files to bedisplayed. In this exemplary embodiment, the term, “document file”,refers to not only a file that is constituted only by charactersequences, which is a document file in a narrow sense, but also a filegenerated in such a way that an amount of contents in a document iscountable in a unit such as pages. It is to be understood that the term,“document file”, is used in a broad sense and may include not onlycharacter sequences, but also images such as drawings and photographs.

Each of the elements 11 and 12 in the information processing apparatus10 is realized by cooperative operation between a computer thatconstitutes the information processing apparatus 10 and programsoperating on the CPU 21 mounted in the computer. The document storage 13is realized by using the HDD 24 mounted in the information processingapparatus 10. Alternatively, the document storage 13 may also berealized by using the RAM 23 or by using an external storage unit via anetwork.

The programs used in this exemplary embodiment may be provided bytransmission via the communication unit or in a stored form in arecording medium readable by a computer, such as a compact-discread-only memory (CD-ROM) or a Universal Serial Bus (USB) memory. Theprograms provided by using the communication unit or the recordingmedium are installed into the computer, and the CPU 21 of the computerperforms the programs consecutively to realize various processes.

FIG. 3 illustrates an example presentation of documents presented on thedisplay 27. In FIG. 3, thumbnails representing documents, such asdocuments 1 to 4, and thumbnails representing binders formed of multipledocuments bound together, such as binders A and B, are depicted.

A document thumbnail is produced from a reduced image of a document. Tobe precise, the document thumbnail includes a reduced image of adocument and accompanying images of the document that are generated whenneeded and added to the reduced image. In this exemplary embodiment,accompanying images 31 and 32 are presented. In FIG. 3, the accompanyingimage 31 is an image representing document thickness. It is apparentfrom a comparison among the documents 1, 2, and 3 that a thickness widthof the accompanying image 31, which is a width representing documentthickness, increases as the document becomes thicker, leading to easyvisual recognition of an amount of contents in the document. Thedocuments 1 and 4 each have one page and the accompanying image 31 isnot added. The accompanying image 32 is an image to enable selection ofa page to be presented in a document having multiple pages and includesa clip image 32 a to bind the multiple pages, buttons 32 b to change areduced image to be presented to the subsequent page or to the precedingpage, and page information 32 c presenting the total number of pages ofthe document and the page number of a current display image. Thedocuments 1 and 4 each have only one page and no accompanying image 32is added.

The accompanying image 31 representing a thickness (hereinafter,referred to as a thickness image) represents document thickness asdescribed above. The document thickness, that is, the amount of contentsin the document, is typically determined by the number of pages thatconstitute the document but not determined only by the number of pages.For example, when a sheet of A3 size is folded and bound into a documentof A4 size, the number of pages does not increase, but the documentthickness increases. In such a case, when a sheet of different size isfolded and bound into a document, the thickness image 31 of the documentmay be presented by enlarging the thickness width of the thickness image31. Other than presenting the amount of contents in the documentdescribed above, the thickness image 31 may represent information on,for example, the number of characters, the number of images, and thelike. The thickness width of the thickness image 31 may be determinedbased on the overall consideration of such information.

Similarly to the thumbnails of the documents, the accompanying image 32to change pages that is to be presented are also added to the binders.The accompanying image 32 does not include a clip image to bind adocument, but a band 33 is added instead as an accompanying image tovisually indicate that multiple documents are bound. Similarly to thecase of a document, a thickness width of the thickness image 31 of thebinder is changed in accordance with an amount of documents bound by thebinder.

Although a reduced image of a document may be generally called a“thumbnail”, in this exemplary embodiment, as described above, a displayimage formed by adding accompanying images to a reduced image of adocument is called a “thumbnail”.

By using a display magnification function for thumbnails provided by thedocument management software, the thumbnails presented on a screen maybe resized. The display magnification may typically be specified bychoosing a display magnification (for example, 67%, 100%, 200%, pagewidth, specify magnification, or the like) in a display menu placed on amenu bar. The exemplary embodiment is characteristic in that, when thedisplay magnification of a thumbnail is changed, display of theaccompanying images 31 and 33 is controlled such that the accompanyingimages 31 and 33 are resized in a first direction in accordance with amagnification identical to the display magnification and resized in asecond direction that differs from the first direction in accordancewith a magnification that differs from the display magnification.Characteristic display control processing by the display controller 12in this exemplary embodiment will be described below with reference toFIG. 4, FIG. 5, and FIGS. 6A to 6C.

Only the document 3, which is depicted in FIG. 3, is illustrated in FIG.4, and the thumbnail of a document will be described using the document3 as a representative example. If the thumbnail of the document 3 ispresented at a current display magnification of 100%, FIG. 4 (a)indicates that the thickness widths of the document represented by thethickness image 31 are t1 and t2. The thickness width t1 representing athickness at the bottom of the reduced image may be the same as thethickness width t2 representing a thickness on the side. If a userinputs an instruction to change the display magnification of thethumbnail from 100% to 60% under this display condition, the entirethumbnail is typically reduced to 60% in accordance with a change in thedisplay magnification to 60% as depicted in FIG. 4 (c). Because thethickness image is also reduced in size proportionally in all directionsto 60%, the thickness image is reduced in directions representing thethickness of the document. Thus, thickness widths t3 and t4 of thedocument after the reduction become smaller than t1 and t2, which arethe thickness widths at a display magnification of 100%, respectively,and the thickness image is presented as a thinner image. If thethickness image is presented at such a reduced size, it is difficult tovisually recognize the thickness of the document, and the effectivenessof the thickness image through which a user is able to recognize theamount of contents in the document may be reduced.

FIG. 4 (b) illustrates an example presentation obtained by performingthe characteristic display control processing in this exemplaryembodiment. In contrast to FIG. 4 (c), while the reduced image itself isreduced to 60% as instructed, the thickness image of the document is notresized in accordance with the instructed display magnification, asdepicted in this example. Specifically, the length of a thickness image31 a in the X direction (first direction), which represents thelongitudinal direction of the thickness image 31 a placed at the bottomof the reduced image, is resized by the display controller 12 to adisplay magnification identical to the display magnification of thereduced image in accordance with the reduction of the reduced image. Onthe other hand, the length of the thickness image 31 a in the Ydirection (second direction), which represents the document thicknessdirection of the thickness image 31 a, is resized by the displaycontroller 12 to a display magnification that differs from the displaymagnification of the reduced image (60%). In this exemplary embodiment,the thickness width t1 is maintained without changing by unchanging thecurrent display magnification, that is, maintaining the displaymagnification (100%), which is the display magnification beforechanging.

A thickness image 31 b on the side of the reduced image is alsoprocessed in the same manner by the display controller 12. Specifically,the length of the thickness image 31 b in the Y direction (firstdirection), which represents the longitudinal direction of the thicknessimage 31 b placed on the side of the reduced image, is resized by thedisplay controller 12 to a display magnification identical to thedisplay magnification of the reduced image in accordance with thereduction of the reduced image. On the other hand, the length of thethickness image 31 b in the X direction (second direction), whichrepresents the document thickness direction of the thickness image 31 b,is resized by the display controller 12 to a display magnification thatdiffers from the display magnification of the reduced image (60%). Inthis exemplary embodiment, in the same manner as the thickness image 31a, the thickness width t2 is maintained without changing by unchangingthe current display magnification, that is, maintaining the displaymagnification (100%), which is the display magnification beforechanging.

According to this exemplary embodiment, the thickness image 31 is notresized in accordance with the display magnification as instructed.Specifically, in the example described above, the thickness image 31 isnot reduced in the thickness direction, and the thickness widths t1 andt2 are maintained. Thus, the thickness of the document remains to beeasily recognizable visually even if the reduced image is reduced.Consequently, the user is able to recognize the amount of contents inthe document by using the thickness image of the document even if thereduced image is reduced.

In this exemplary embodiment, the thickness widths t1 and t2 of thethickness image 31 are unchanged to maintain the visibility that hasbeen obtained before changing the display magnification. However, thethickness widths t1 and t2 of the thickness image 31 may be changed aslong as the visibility of the document thickness is maintained. Forexample, in response to an instruction to resize the displaymagnification to 40%, while the reduced image is reduced to 40%, thethickness width of the thickness image 31 is reduced to 80%. Thus, thelength of the thickness image 31 in the thickness direction is reducedby an amount of change smaller than the amount of change by which thereduced image is resized in accordance with the display magnification asinstructed (for example, 40%). In this example, the visibility of thethickness widths t1 and t2 of the thickness image 31 may be maintainedby the reduction to 80%.

In the above description, although the case of reducing thumbnails insize is described, enlarging thumbnails may be treated in the samemanner. Specifically, when a display magnification to enlarge thepresentation of a thumbnail is specified, the display controller 12enlarges a reduced image in accordance with the specified displaymagnification. The display controller 12 enlarges the thickness image 31in accordance with a magnification identical to the displaymagnification of the reduced image in the longitudinal direction butmaintains the thickness widths t1 and t2 without changing.Alternatively, the thickness widths t1 and t2 of the thickness image 31may be enlarged to a display magnification (for example, 120%) by anamount of change smaller than the amount of change by which the reducedimage is resized in accordance with the display magnification asinstructed (for example, 200%).

In this exemplary embodiment, because the thumbnails are resized in atwo-dimensional coordinate plane, the first direction and the seconddirection described above are typically orthogonal to each other.However, this is not limiting, and the first direction and the seconddirection may be determined in accordance with a presentation method ofthe thumbnails. In this exemplary embodiment, although the thumbnails ofdocuments and binders are described as examples, the display control forthe thumbnails described above may be applied to other kinds ofaccompanying images such as stickers or the like that may be added toreduced images.

The accompanying image 32, which is also added to a reduced image, as isthe thickness image 31, including the clip image 32 a, continues to bepresented in the same size and form without being resized in either ofthe first or second directions even when the display magnification ischanged.

Only the binder B, which is depicted in FIG. 3, is illustrated in FIG.5, and the thumbnail of a binder will be described using the binder B asa representative example. If the thumbnail of the binder B is presentedat a current display magnification of 100%, FIG. 5 (a) indicates thatthe thickness widths of the binder represented by the thickness imagesare t3 and t4. The thickness width t3 representing a thickness at thebottom of the reduced image may be the same as the thickness width t4representing a thickness on the side. The display control of thethickness images of the binder is the same as the display control of thethickness images 31 of a document described above, and descriptionthereof will be omitted. Here, the band 33, which is unique to thebinder, will be described.

As described above, the band 33 is added to a thumbnail of a binder asan accompanying image so that the binder is visually identifiable. Afunction to start an application is assigned to the band 33, and theapplication is started, for example, by an operation such asdouble-clicking on the band 33. The application has a function such asopening a new window and presenting, in the new window, information onan index or the like of the documents bound in the binder.

For example, if the thumbnail of the binder B is presented at a currentdisplay magnification of 100% in FIG. 5 (a), FIG. 5 (a) indicates thatthe width of the band 33 is t5. If a user inputs an instruction tochange the display magnification of the thumbnail to 60% under thisdisplay condition, the entire thumbnail is typically reduced to 60% inaccordance with a change in the display magnification to 60% as depictedin FIG. 5 (c). Because the image of the band 33 is also reduced in sizeproportionally in all directions to 60%, the width of the band 33 isreduced, and the width t8 of the band 33 after the reduction is smallerthan the width t5, which is the width at a display magnification of100%, leading to a narrow image being presented. If the width of theband 33 is presented at such a reduced size, the user may have adifficulty in operation such as double-clicking on the binder, and theoperability of the binder decreases.

FIG. 5 (b) illustrates an example presentation obtained by performingthe characteristic display control processing in this exemplaryembodiment. In contrast to FIG. 5 (c), while the reduced image itself isreduced to 60% as instructed, the width of the band 33 is not resized inaccordance with the instructed display magnification, as depicted inthis example. Specifically, the length of the band 33 in the Y direction(first direction), which represents the longitudinal direction of theband 33, is resized by the display controller 12 to a displaymagnification identical to the display magnification of the reducedimage in accordance with the reduction of the reduced image. On theother hand, the length of the band 33 in the X direction (seconddirection), which represents the thickness direction of the band 33, isresized by the display controller 12 to a display magnification thatdiffers from the display magnification of the reduced image (60%). Inthis exemplary embodiment, the width t5 of the band 33 is maintainedwithout changing by unchanging the current display magnification, thatis, maintaining the display magnification (100%), which is the displaymagnification before changing.

According to this exemplary embodiment, the band 33 is not resized inaccordance with the display magnification as instructed. Specifically,in the example described above, the band 33 is not reduced, and thewidth t5 of the band 33 is maintained. Thus, the operability of the band33 is maintained even if the reduced image is reduced. It goes withoutsaying that the visibility is also maintained in addition to theoperability as is the case for the thickness of the binder.Specifically, in a case where a user is allowed to specify the color ofthe band 33 and the color of the band 33 happens to be the same as orsimilar to the color of the cover of the binder, a narrow width of theband 33 reduces the visibility of the band 33. According to thisexemplary embodiment, the decrease in visibility is avoided because thewidth of the band 33 is maintained.

In the same manner as is described for the thumbnails of the documents,the band 33, which is one of the accompanying images, may also besubjected to the display control in which the length in the thicknessdirection of a document is resized by an amount of change smaller thanthe amount of change by which the reduced image is resized in accordancewith the display magnification as instructed and the display control inwhich the thickness image 31 of a document is enlarged.

When the thickness images of documents or binders are not reduced inaccordance with the specified display magnification and maintain theoriginal thickness as in this exemplary embodiment, thumbnails may bepresented superposed. Such presentation will be described below.

FIG. 6A illustrates some of the thumbnails displayed on the screen. Thename of a document or binder (hereinafter, collectively referred to as a“document name”) is presented directly under each of the thumbnails.FIG. 6B illustrates an example presentation of display images of thethumbnails presented in FIG. 6A, the thumbnails being reduced withoutbeing subjected to a characteristic display control according to thisexemplary embodiment described below.

When the thumbnails are aligned and displayed as in FIG. 6A, thethumbnails or the document names may be presented superposed withadjacent thumbnails as depicted in FIG. 6B when the thumbnails or thedocument names are presented at a certain display magnification orlarger. If the thumbnails are reduced in the same manner as the reducedimages without taking into account the sizes of the accompanying imagesbeing displayed, the accompanying images or the document names arepresented superposed with each other as in this example presentation.

Thus, it is characteristic of this exemplary embodiment that, when thedisplay magnification of the thumbnails is changed and adjacentthumbnails are presented superposed with each other, the thumbnails arerealigned in a manner that no thumbnail is presented superposed withother thumbnails. FIG. 6C illustrates an example presentation of thethumbnails that are reduced and subjected to the characteristic displaycontrol in this exemplary embodiment.

As exemplified in FIG. 6C, a first method to avoid superposition of thethumbnails and the document names is to simulate a situation in whichthe thumbnails and the document names are reduced in accordance with aspecified display magnification and to determine whether the thumbnailsand the document names are superposed in advance in accordance with thedisplay positions where the thumbnails (reduced images and accompanyingimages) and the document names are placed before changing the displaymagnification, the display gaps between these thumbnails and documentnames before changing the display magnification, and the specifieddisplay magnification. It goes without saying that, in the simulation,it is assumed that the document thicknesses represented by the thicknessimages remain unchanged when the display magnification is changed. Whenit is determined that superposition occurs, the display gaps between thethumbnails are adjusted and the thumbnails are realigned so that nosuperposition occurs after changing the display magnification.Alternatively, in a second method, if the thumbnails are presentedsuperposed after reducing the thumbnails in accordance with the displaymagnification, the thumbnails after the size reduction may be controlledto be realigned in positions where no superposition occurs afterconfirming that the thumbnails are superposed with each other.

Thus, thumbnail superposition that may occur if a thickness image of adocument is not changed in accordance with the display magnification,which is the display control characteristic of this exemplaryembodiment, is avoided in advance.

The foregoing description of the exemplary embodiment of the presentinvention has been provided for the purposes of illustration anddescription. It is not intended to be exhaustive or to limit theinvention to the precise forms disclosed. Obviously, many modificationsand variations will be apparent to practitioners skilled in the art. Theembodiment was chosen and described in order to best explain theprinciples of the invention and its practical applications, therebyenabling others skilled in the art to understand the invention forvarious embodiments and with the various modifications as are suited tothe particular use contemplated. It is intended that the scope of theinvention be defined by the following claims and their equivalents.

What is claimed is:
 1. An information processing apparatus comprising: adisplay controller that controls display of a display image, which isformed of a reduced image of a document by adding an accompanying image,in a manner that when a display magnification of the display image ischanged, the accompanying image is resized in a first direction inaccordance with a magnification identical to the display magnificationand resized in a second direction that differs from the first directionin accordance with a magnification that differs from the displaymagnification.
 2. The information processing apparatus according toclaim 1, wherein the display controller resizes a length of theaccompanying image in the second direction by an amount of changesmaller than an amount of change by which the reduced image is resizedin accordance with the display magnification.
 3. The informationprocessing apparatus according to claim 2, wherein the displaycontroller controls display of the accompanying image in a manner that awidth of the accompanying image in the second direction is unchanged. 4.The information processing apparatus according to claim 1, wherein theaccompanying image is an image representing a thickness of the document,and a thickness direction of the document is the second direction. 5.The information processing apparatus according to claim 1, wherein whena plurality of display images are present and adjacent display imagesare presented superposed with each other due to a change in the displaymagnification of the display images, the display controller realigns thedisplay images in a manner that none of the display images is superposedwith other display images.
 6. The information processing apparatusaccording to claim 4, wherein when a plurality of display images arepresent and adjacent display images are presented superposed with eachother due to a change in the display magnification of the displayimages, the display controller realigns the display images in a mannerthat none of the display images is superposed with other display images.7. The information processing apparatus according to claim 1, wherein afunction to start an application in response to a predeterminedoperation is assigned to the accompanying image.
 8. The informationprocessing apparatus according to claim 1, wherein the accompanyingimage is an image representing a band of a binder to bind a plurality ofdocuments, and a width direction of the band is the second direction. 9.The information processing apparatus according to claim 7, wherein theaccompanying image is an image representing a band of a binder to bind aplurality of documents, and a width direction of the band is the seconddirection.
 10. A non-transitory computer readable medium storing aprogram causing a computer to execute a process for informationprocessing, the process comprising: controlling display of a displayimage, which is formed of a reduced image of a document by adding anaccompanying image, in a manner that when a display magnification of thedisplay image is changed, the accompanying image is resized in a firstdirection in accordance with a magnification identical to the displaymagnification and resized in a second direction that differs from thefirst direction in accordance with a magnification that differs from thedisplay magnification.
 11. An information processing apparatuscomprising: means for controlling display of a display image, which isformed of a reduced image of a document by adding an accompanying image,in a manner that when a display magnification of the display image ischanged, the accompanying image is resized in a first direction inaccordance with a magnification identical to the display magnificationand resized in a second direction that differs from the first directionin accordance with a magnification that differs from the displaymagnification.